IP-224 Service Bulletin Update - COR audio problem fixed
Contents
1. BOSCH January 28 2015 Bosch Security Systems Inc 12000 Portland Ave S Burnsville MN 55337 USA Telephone 1 952 736 4253 Telex Radio Dispatch Dealer End User Fax 1 952 886 3720 Larry Benedict us bosch com www boschsecurity us Quality Issue IP 224 Units Updated Firmware Fix Now Available Dear Valued Customer In late December 2014 we informed you of a quality issue affecting IP 224 units manufactured under the Telex Radio Dispatch brand on or after March 1 2014 The issue involves IP 224 units with serial numbers between 224140337 and 224141367 When an IP 224 unit is configured for COR signaling and its power is interrupted a loss of audio occurs when the unit powers back up The result is a received audio failure at dispatch positions associated with the lines controlled by the affected IP 224 units Our engineering team has investigated the problem and determined that it is a result of slightly different operation of an integrated circuit from a secondary supplier A firmware modification to prevent the problem has been developed tested and is now ready for use in the field ACTION REQUIRED Please update firmware to version 1 4 in all IP 224 units with serial numbers between 224140337 and 224141367 This update will correct the problem and allow the use of COR signaling You can obtain the firmware from the IP 224 downloads section of the www telex com website while logged on as a dealer Once logged on please use2. the following link that will take you directly to the file to send the file to the IP 224 BOSCH are Trademarks of Robert Bosch GmbH Germany If you are unfamiliar with how to perform this firmware update please consult January 28 2015 the IP 224 user manual located at Page 2 of 2 www telex com us dispatch file i 99285 amp lg eng You may also contact our technical support team at 800 898 6723 or via e mail at telexdispatchsupport us bosch com for further assistance We apologize for any inconvenience this may have caused you or your customers On behalf of the Telex Radio Dispatch brand would like to take this opportunity to thank you for your business your patience and your understanding while we work through this issue If at any time you have a concern or issue regarding any of our products please feel free to contact me directly Yours sincerely i a A ig r N i a rl fb RR Cat ny Lae Rag hae Larry L Benedict Product Manager
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